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Exploring Our Galaxy's Ancient Brown Dwarfs - Universe Today
As the name implies, a brown dwarf is small… only about 7% the size of the Sun. As far as stellar senior citizens go, they’re cool. Zipping along through space at speeds of 100 to 200 kilometers per second, they may have formed back when our galaxy was young – perhaps 10 billion years ago. … Continue reading "Exploring Our Galaxy’s Ancient Brown Dwarfs"